What's Wrong With Secretary Kim OST Part.1 - Kihyun (MONSTA X), SeolA (WJSN)

01. Love Virus
02. Love Virus (Inst.)

What's Wrong With Secretary Kim OST Part.2 - Jung Se Woon

01. It's You
02. It's You (Inst.)

What's Wrong With Secretary Kim OST Part.3 - GFRIEND

01. Wanna Be
02. Wanna Be (Inst.)

What's Wrong With Secretary Kim OST Part.4 - Jinho (PENTAGON), Rothy

01. A Little More
02. A Little More (Inst.)

What's Wrong With Secretary Kim OST Part.5 - Kim Na Young

01. Because I Only See You
02. Because I Only See You (Inst.)

What's Wrong With Secretary Kim OST Part.6 - Lee Da Yun

01. Why Am I Like This
02. Why Am I Like This (Inst.)

What's Wrong With Secretary Kim OST Part.7 - Yoon Ddan Ddan

01. In The End
02. In The End (Inst.)

What's Wrong With Secretary Kim OST Part.8 - Song Yoo Bin

01. The First Word
02. The First Word (Inst.)

What's Wrong With Secretary Kim OST CD.1 - Various Artists

01. Love Virus - Kihyun [Monsta X] & Seola [Cosmic Girls]
02. It's You - Jung Se Woon
03. Wanna Be - GFRIEND
04. A Little More - Jinho [Pentagon] & Rothy
05. I Can Only See You - Kim Na Young
06. What's Wrong With Me - Lee Da Yun
07. In The End - Yoon Ddan Ddan
08. The First Word - Song Yoo Bin
09. Love Virus (Inst.) - Kihyun [Monsta X] & Seola [Cosmic Girls]
10. It's You (Inst.) - Jung Se Woon
11. Wanna Be (Inst.) - GFRIEND
12. A Little More (Inst.) - Jinho [Pentagon] & Rothy
13. I Can Only See You (Inst.) - Kim Na Young
14. What's Wrong With Me (Inst.) - Lee Da Yun
15. In The End (Inst.) - Yoon Ddan Ddan
16. The First Word (Inst.) - Song Yoo Bin

What's Wrong With Secretary Kim OST CD.2 - Various Artists

01. Secretary Kim - Various Artists
02. Why Brass Band M1 - Various Artists
03. Kim Possible - Various Artists
04. Man In Black - Various Artists
05. Think Strings No.24 - Various Artists
06. Alsong Big Band - Various Artists
07. Funny Sunny - Various Artists
08. Why Slow Piano Mood - Various Artists
09. Baby Elephant - Various Artists
10. New Recruit - Various Artists
11. Squeeze - Various Artists
12. Lovely Girl - Various Artists
13. Lonely Boss - Various Artists
14. Big Bean - Various Artists
15. Why Comic Lim - Various Artists
16. Giant Foot - Various Artists
17. Loving You Strings No.23 - Various Artists
18. Groove Company - Various Artists
19. Mad Walk - Various Artists
20. Nothing To Lose - Various Artists
21. Edge - Various Artists
22. Art Of Love - Various Artists
23. Pacific - Various Artists
24. Tambora - Various Artists
25. Old Story Strings No.13 - Various Artists
26. Tempest - Various Artists